Study Shows Hydroxychloroquine Can't Prevent Coronavirus Infection

A randomized, placebo-controlled trial found no evidence hydroxychloroquine protected people exposed to the novel coronavirus that has infected over 1.8 million Americans and counting. On Thursday, the New England Journal of Medicine published results from a post-exposure prophylaxis trial that were more than a little discouraging. This latest disappointment comes four days after Sanofi (NASDAQ: SNY) stopped supplying the drug to COVID-19 patients enrolled in clinical trials.